Werk #8882: Fix invalid rule match analyzation in WATO

Component Setup
Title Fix invalid rule match analyzation in WATO
Date Sep 4, 2019
Checkmk Edition Checkmk Raw (CRE)
Checkmk Version 1.6.0b9 2.0.0i1
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

The "Parameters of host/service" page and ruleset lists showed an invalid match result for rules which value evaluates to None. For binary rulesets (the ones that only have yes/no as value) the result was also not displayed correctly.

The ruleset matching of Checkmk during checking was not affected by this issue.

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